Which bacterium causes gonorrhoea disease ?

Question

Accepted Answer

The bacterium responsible for causing gonorrhoea is Neisseria gonorrhoeae, which is correctly identified as Option 4. Here is a detailed explanation supporting this answer and why the other options are incorrect:

1. **Neisseria gonorrhoeae (Option 4)**: This bacterium is a gram-negative diplococcus, meaning it appears as pairs of spherical bacteria. It is specifically known for causing gonorrhoea, a sexually transmitted infection (STI) that affects both men and women. The infection primarily targets the mucous membranes of the urethra, cervix, throat, and rectum. Neisseria gonorrhoeae is highly adapted to human hosts and is transmitted through sexual contact. Symptoms of gonorrhoea can include painful urination, abnormal discharge, and in some cases, it can lead to more severe health issues if left untreated.

2. **Mycobacterium tuberculosis (Option 1)**: This bacterium is incorrect as it causes tuberculosis (TB), not gonorrhoea. Tuberculosis is a serious infectious disease that primarily affects the lungs but can also impact other parts of the body. It is spread through airborne droplets when an infected person coughs or sneezes.

3. **Corynebacterium diphtheriae (Option 2)**: This option is incorrect because Corynebacterium diphtheriae is the causative agent of diphtheria, not gonorrhoea. Diphtheria is an infection that affects the mucous membranes of the throat and nose, and it can lead to severe respiratory issues and other complications.

4. **Mycobacterium leprae (Option 3)**: This bacterium is responsible for leprosy (Hansen's disease), not gonorrhoea. Leprosy is a chronic infectious disease that primarily affects the skin, peripheral nerves, and mucous membranes of the upper respiratory tract. It is characterized by long incubation periods and can lead to significant disfigurement and disability if untreated.

In conclusion, Neisseria gonorrhoeae is the correct answer as it is the specific bacterium that causes gonorrhoea, while the other options are associated with entirely different diseases.